If you are looking to buy industrial ball mill machines in the US, here are some reputable sources and options to consider

1. JSB Industrial Solutions Inc. JSB Industrial Solutions manufactures a variety of industrial ball mills suitable for many applications including abrasives, ceramics, chemicals, pharmaceuticals, and more. They have over 50 years of experience and offer custom solutions to enhance process capabilities. You can contact them directly for quotes and specifications.
2. A.M. King A.M. King specializes in both new and used ball mills for mineral processing and industrial applications. They stock a wide range of large-capacity mills from trusted manufacturers like Metso, FLSmidth, Outotec, Nordberg, and others. Their inventory includes mills for wet and dry grinding, with different discharge options. Website: AM King They provide ready-to-ship equipment and can help you find a mill that fits your specific needs
   
3. Across International For fine grinding and laboratory scale or smaller industrial ball mills, Across International offers planetary ball mills, high energy ball mills, and related mixing equipment. They provide optimized milling solutions with custom support for R&D and production needs. Website: Across International
   
4. Online Marketplaces for New and Used Mills Websites that specialize in industrial equipment sales can be useful, including used equipment marketplaces where you might find good deals on ball mills suitable for industrial use. For example, the site mentioned in
   www.savonaequipment.com
   offers both new and used ball mills worldwide
5. Additional Considerations When selecting a ball mill, consider factors like: Your ore or material hardness (Bond Work Index) Desired capacity (tons per hour) Product size requirements Wet vs. dry grinding processes Budget including total cost of ownership (purchase, energy, maintenance) More detailed guidance on selecting the right ball mill can be found in industry buying guides and technical articles
   

In summary, you can buy industrial ball mills in the US from specialized manufacturers like JSB Industrial Solutions or from suppliers of used industrial equipment such as A.M. King. For smaller or lab-scale mills, Across International is a good choice. Make sure to define your process requirements clearly to choose the best machine for your application

If you want, I can help you get contact details or more specific recommendations based on your application needs